Add OhMiBod Esci 2 documentation

[blackspherefollower]

Despite being a Kiiroo, it's based on the Nordic chipset (assumed because it's advertising the Nordic DFU service).

BLE Name: OhMiBod 4.0 Service UUID: a0d70001-4c16-4ba7-977a-d394920e13a3 Tx characteristic UUID: a0d70002-4c16-4ba7-977a-d394920e13a3 Rx characteristic UUID: a0d70003-4c16-4ba7-977a-d394920e13a3

Supposedly there's a bunch of settings for light intensity (including doubling the light intensity for use whilst camming)

So far all I've worked out is the vibe control, which is [ 0x01 0xXX ] to Tx where XX is speed in the range 0-100 (0x64).

Given the range, it seems like the UUIDs could just be added to the Kiiroo 2.1 Vibe protocol.